package object.warpper;

public class IntergerDemo2 {
    public static void main(String[] args) {
        String str="123";
        String s="w";
        int a=Integer.parseInt(str);
        System.out.println(a);
        double b=Double.parseDouble(str);
        System.out.println(b);
        int c=Integer.parseInt(s);
        System.out.println();

    }
}
